Riot Platforms, Inc., together with its subsidiaries, operates as a bitcoin mining company in North America. The company operates through three segments: Bitcoin Mining, Data Center Hosting, and Engineering. It also provides co-location services for institutional-scale bitcoin mining companies; critical infrastructure and workforce for institutional-scale miners to deploy and operate their miners; operation of data centers; and maintenance/management of computing capacity. In addition, the company engages in the design and manufacturing of power distribution equipment and custom engineered electrical products; and electricity distribution product design, manufacture, and installation services primarily focused on large-scale commercial, and governmental customers, as well as a range of markets, including data center, power generation, utility, water, industrial, and alternative energy. The company was formerly known as Riot Blockchain, Inc. Riot Platforms, Inc. was incorporated in 1998 and is based in Castle Rock, Colorado.

Core Scientific, Inc. provides digital asset mining services in North America. It operates through two segments, Mining and Hosting. The company offers blockchain infrastructure, software solutions, and services; and operates data center mining facilities. It also mines digital assets for its own account; and provides hosting services for other large bitcoin miners, which include deployment, monitoring, trouble shooting, optimization, and maintenance of its customers' digital asset mining equipment. In addition, the company provides electrical power, repair, and other infrastructure services to operate, maintain, and earn digital assets; and sells mining equipment to customers. Core Scientific, Inc. was founded in 2017 and is headquartered in Dover, Delaware.

Cipher Mining Inc., together with its subsidiaries, engages in the development and operation of industrial scale bitcoin mining data centers in the United States. The company was incorporated in 2020 and is based in New York, New York. Cipher Mining Inc. operates as a subsidiary of Bitfury Holding B.V.

Mercurity Fintech Holding Inc. operates as a fintech company. The company offers business consultation services; distributed storage and computing services business includes cryptocurrency mining, which provides computing power to the mining pool; and cloud storage services for other decentralized platform operators. The company was formerly known as JMU Limited and changed its name to Mercurity Fintech Holding Inc. in April 2020. Mercurity Fintech Holding Inc. was incorporated in 2011 and is headquartered in New York, New York.

Bit Digital, Inc., together with its subsidiaries, engages in the bitcoin mining business. It is also involved in the treasury management activities; and digital asset staking and digital asset mining businesses, as well as ethereum staking activities. In addition, it provides specialized cloud-infrastructure services for artificial intelligence applications. The company was formerly known as Golden Bull Limited and changed its name to Bit Digital, Inc. in September 2020. Bit Digital, Inc. was founded in 2015 and is headquartered in New York, New York.

Stronghold Digital Mining, Inc., a crypto asset mining company, focuses on Bitcoin mining in the United States. It operates in two segments, Energy Operations and Cryptocurrency Operations. It also owns and operates coal refuse power generation facilities; and provides environmental remediation and reclamation services. The company was incorporated in 2021 and is headquartered in New York, New York.

BIT Mining Limited operates as a cryptocurrency mining company in the Mainland China, the United States, and Hong Kong. The company operates in two segments: Data Center and Cryptocurrency Mining. It operates a cryptocurrency mining data center in Ohio with power capacity of 82.5 megawatts; and purchases and deploys bitcoin mining machines. In addition, it engages in online gaming activities; and provision of technology services. The company was formerly known as 500.com Limited and changed its name to BIT Mining Limited in April 2021. BIT Mining Limited was founded in 2001 and is based in Akron, Ohio.

Greenidge Generation Holdings Inc. operates as an integrated cryptocurrency datacenter and power generation company. The company owns and operates cryptocurrency datacenter in New York, as well as hosts, powers, and provides technical support and other related services to bitcoin mining equipment owned by customers. It also owns and operates a 106 MW nameplate capacity power generation facility. The company was founded in 1937 and is based in Fairfield, Connecticut.